#include<stdio.h>

void covert(int* x,int* y){
	int temp;
	temp=*x;
	*x=*y;
	*y=temp;
	printf("a=%d  b=%d",*x,*y);
}
int main()
{
	int a,b;
	scanf("%d%d",&a,&b);
	covert(&a,&b);
}